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DROL
- 162 -
{ DROL ... Left rotation of 32-bit data
Usable device
Bit device Word device
Con-
stant
Pointer Level
X Y M L SM F T C D R Z K H P N
Digit
desig-
nation
No. of
steps
Index
D
n
3
DROL
Left rotation command
n
D
DROL
Setting data
n
Head No. of device where
left rotation data is stored
D
Times (0 to 31)
Function
The 32-bit data designated with D is rotated n bits to the left excluding the carry flag.
Carry flag
(SM12)
B15B31B30B29 B16
B2 B1 B0
D
n-bit rotation
D+1
Execution conditions
The execution conditions for the DROL command are as shown below.
Left rotation command OFF
DROL
ON
Executed per scan
Executed per scan